"It was the most beautiful thing I'd ever seen," Cuoco said tearfully in an Instagram Stories video.

The former Big Bang Theory star, 34, then added her fostered shelter dog, Dumpy, was sick during the performance.

"Dumpy then threw up on the couch during, and I got so upset because I wanted to watch the end and then Karl was able to get it back for me... Thankyou Andrea Bocelli for doing that," she said. "That was life-changing."